Stylistically, it's similar to "To Pimp a Butterfly."
If you're going into untitled unmastered. hoping for a slew of trap bangers a la m.A.A.d city, you are going to be disappointed. Stylistically speaking, this is along the same lines as To Pimp a Butterfly. It could almost pass as a modern jazz record, with Terrace Martin's signature saxophone sound, Thundercat's bass and live drums that can be heard around the collection of songs.
The tracks stick mostly to socio-political topics, the same kind of stuff that made To Pimp a Butterfly so highly acclaimed. On "Untitled 3," which was previously heard on The Colbert Report, he touches on multiple races in a way that turns the mirror back on them.
"What the white man say?
A piece of mines
That's what the white man wanted when I rhyme
Telling me that he selling me just for $10.99
If I go platinum from rapping, I do the company fine"
There are little interlude-esque parts peppered throughout the album, much like TPAB. However, unlike its predecessor, it isn't as tightly polished, but you could probably tell that from the titles and album roll out, at any rate.